CN105828860A - Gas delivery system and method of sanitizing the gas flow path within a gas delivery system - Google Patents
Gas delivery system and method of sanitizing the gas flow path within a gas delivery system Download PDFInfo
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- CN105828860A CN105828860A CN201480069125.8A CN201480069125A CN105828860A CN 105828860 A CN105828860 A CN 105828860A CN 201480069125 A CN201480069125 A CN 201480069125A CN 105828860 A CN105828860 A CN 105828860A
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- 238000011012 sanitization Methods 0.000 title abstract 5
- 238000004659 sterilization and disinfection Methods 0.000 claims description 36
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- 230000003287 optical effect Effects 0.000 claims description 9
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Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2/00—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor
- A61L2/02—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor using physical phenomena
- A61L2/08—Radiation
- A61L2/10—Ultraviolet radiation
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L9/00—Disinfection, sterilisation or deodorisation of air
- A61L9/16—Disinfection, sterilisation or deodorisation of air using physical phenomena
- A61L9/18—Radiation
- A61L9/20—Ultraviolet radiation
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- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
- A61M16/0057—Pumps therefor
- A61M16/0066—Blowers or centrifugal pumps
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
- A61M16/04—Tracheal tubes
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
- A61M16/06—Respiratory or anaesthetic masks
- A61M16/0666—Nasal cannulas or tubing
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
- A61M16/08—Bellows; Connecting tubes ; Water traps; Patient circuits
- A61M16/0875—Connecting tubes
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
- A61M16/10—Preparation of respiratory gases or vapours
- A61M16/14—Preparation of respiratory gases or vapours by mixing different fluids, one of them being in a liquid phase
- A61M16/16—Devices to humidify the respiration air
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
- A61M16/20—Valves specially adapted to medical respiratory devices
- A61M16/201—Controlled valves
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2202/00—Aspects relating to methods or apparatus for disinfecting or sterilising materials or objects
- A61L2202/10—Apparatus features
- A61L2202/11—Apparatus for generating biocidal substances, e.g. vaporisers, UV lamps
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2202/00—Aspects relating to methods or apparatus for disinfecting or sterilising materials or objects
- A61L2202/20—Targets to be treated
- A61L2202/24—Medical instruments, e.g. endoscopes, catheters, sharps
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- A—HUMAN NECESSITIES
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- A61L2209/00—Aspects relating to disinfection, sterilisation or deodorisation of air
- A61L2209/10—Apparatus features
- A61L2209/16—Connections to a HVAC unit
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
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- A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
- A61M16/0003—Accessories therefor, e.g. sensors, vibrators, negative pressure
- A61M2016/003—Accessories therefor, e.g. sensors, vibrators, negative pressure with a flowmeter
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M39/00—Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
- A61M39/10—Tube connectors; Tube couplings
- A61M39/16—Tube connectors; Tube couplings having provision for disinfection or sterilisation
- A61M2039/167—Tube connectors; Tube couplings having provision for disinfection or sterilisation with energizing means, e.g. light, vibration, electricity
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M2209/00—Ancillary equipment
- A61M2209/10—Equipment for cleaning
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Veterinary Medicine (AREA)
- Public Health (AREA)
- General Health & Medical Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- Pulmonology (AREA)
- Engineering & Computer Science (AREA)
- Hematology (AREA)
- Heart & Thoracic Surgery (AREA)
- Biomedical Technology (AREA)
- Anesthesiology (AREA)
- Emergency Medicine (AREA)
- Epidemiology (AREA)
- Otolaryngology (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Apparatus For Disinfection Or Sterilisation (AREA)
- External Artificial Organs (AREA)
- Disinfection, Sterilisation Or Deodorisation Of Air (AREA)
Abstract
The invention discloses a gas delivery system and a method for sanitizing the gas flow path within a gas delivery system. The gas delivery system (50) for delivering a flow of breathing gas to a patient (54) includes a blower assembly (100) structured to generate the flow of breathing gas. The blower assembly includes a gas flow path including an inlet manifold, an assembly (130) structured to adjust a pressure and/or flow rate of the flow of breathing gas, and an outlet manifold structured to be coupled to a patient circuit. The gas delivery system additionally includes a light system structured to generate sanitizing light and deliver the sanitizing light to one or more internal surfaces of at least one of the inlet manifold, the assembly and the outlet manifold for sanitizing the one or more internal surfaces.
Description
Technical field
The present invention relates to gas delivery system, this gas delivery system is such as but not limited to PAP treatment system, respirator, oxygen delivery system or other breathing equipment for treating sleep apnea, and the method relating more specifically to sterilize the gas flow paths in this gas delivery system.
Background technology
Many individualities suffer from disordered breathing during sleeping.Sleep apnea is a kind of Usual examples of this sleep disordered breathing that whole world millions of people is suffered.A kind of sleep apnea is obstructive sleep apnea (OSA), its for a kind of owing to airway obstruction causes breathing the situation of disrupted sleep repeatedly；Usually epithelium healing or hypopharnyx region.It has been generally acknowledged that the blocking at least partially due to stablize the most loose of the muscle of epithelium healing sections of air flue, thus allow this air flue of tissue contracts.Another type of sleep apnea syndrome is central respiratory arrest, and this is owing to lacking the respiratory arrest caused from the breath signal of brain respiratory center.Asphyxia situation (either obstructive sleep apnea, central or as obstructive sleep apnea and the mixed type of the combination of central respiratory arrest) be defined as breathe completely or nearly stopping, such as in peak value respiratory air flow reduce 90% or more.
Those people suffering from sleep apnea stand sleep fragmentation and respiratory arrest completely or almost completely during having the sleep of HbO2 Oxyhemoglobin desaturation of potentially serious degree off and on.These symptoms can be converted to extreme daytime drowsiness, arrhythmia, pulmonary hypertension, congestive heart failure and/or cognitive dysfunction clinically.Other consequence of sleep apnea include right ventricle dysfunction, clear-headed period and sleep during carbon dioxide accumulation and the arterial oxygen tension that persistently reduces.Sleep apnea patient can be at being derived from the too high mortality risk of these factors and exist the excessive risk having an accident when driving and/or operate the device of potential danger.
Even if patient is not subjected to the completely or almost completely obstruction of air flue, it is also known that, such as from sleep, the side effect of awakening etc can occur in the place only existing air flue partial occlusion.The partial occlusion of air flue frequently results in the shallow breathing being referred to as low ventilation.Low ventilation is generally defined as the minimizing of 50% or bigger in peak value respiratory air flow.Other type of sleep disordered breathing includes but not limited to upper airway resistance syndrome (UARS) and the vibration of air flue, such as, be commonly called the pharynx wall vibration of snoring.Thus, when diagnosis has the patient of disordered breathing (such as OSA, central respiratory arrest or UARS), it is important that detect asphyxia and the generation of low ventilation of patient exactly.
It is well-known by apply positive air pressure (PAP) treating sleep disordered breathing to the air flue of patient.This normal pressure " clamps " this air flue effectively, thus remains open to the open channels of pulmonary.In one is referred to as the PAP treatment of continuous positive air pressure (CPAP), the pressure to the gas of patient's conveying is constant in the breath cycle of whole patient.It is also known that offer positive pressure therapy, wherein the pressure to the gas of patient's conveying changes along with the breath cycle of patient, or firmly changing, to increase the comfort level of patient along with patient.This pressure support technique is referred to as double horizontal pressure force support, wherein to the inspiratory positive airway pressure (IPAP) of patient's conveying higher than EPAP (EPAP).
In known gas delivery system, unclean gas flow paths can cause the organism of such as antibacterial, virus, fungus or mycete etc to be just inhaled by a patient.Generally in warm and moist place, patient can be damaged by these organisms of growth.When multiple patients use same gas delivery system, such as, in the PAP treatment system leasing market that the risk of pathophoresis increases, this often occurs.A kind of known method is the adverse current using biofilter to prevent from entering into antibacterial this PAP device from patient in the exit of this device.The another kind of known method solving this problem includes using steam autoclaves or other gas sterilizing unit to sterilize with the gas flow paths to gas delivery system.But, the use of this device is not worthwhile, and can damage the sensing unit in this gas delivery system yet.Another known method sterilizing the gas flow paths of gas delivery system includes that the abluent using the coldest disinfectant, vinegar, ethanol or suds etc is to clean this gas delivery system.But, this reagent can damage the sensing unit of gas delivery system equally and also can leave the Harmful Residue that can be inhaled by a patient.
Additionally, the problem just described is not limited in for treating the gas delivery system that the PAP of sleep apnea treats the form of system.On the contrary, this problem is to exist with for carrying in the way of any one gas delivery system of gas flow combines to patient, and this gas delivery system is such as but not limited to being respirator, oxygen delivery system or other breathing equipment.
Thus, the field of gas delivery system exists room for improvement, and there is room for improvement especially for the method that this gas delivery system is sterilized.
Summary of the invention
In one embodiment, it is provided that a kind of gas delivery system for carrying gas flow to patient.This gas delivery system includes the blower assembly being configured to produce gas flow.This blower assembly includes gas flow paths, and this gas flow paths includes inlet manifold, the assembly (such as impeller assembly) of pressure and/or flow velocity for regulating this breathing gas and is configured to be coupled to the outlet manifold of patient circuit.This gas delivery system also includes photosystem, this photosystem is configured to produce sterilization light and the one or more inner surfacies of at least one in inlet manifold, impeller assembly and outlet manifold carry this sterilization light, for carrying out disinfection the one or more inner surface.
In another embodiment, it is provided that a kind of method carrying out disinfection the gas flow paths in gas delivery system, this gas delivery system includes blower assembly.This gas flow paths includes inlet manifold, the assembly (such as impeller assembly) of pressure and/or flow velocity for regulating this breathing gas and is configured to be coupled to the outlet manifold of patient circuit.This blower assembly is configured to produce gas flow and include this gas flow paths.The method comprises the following steps: the part providing a kind of photosystem as this gas delivery system；This photosystem is used to produce sterilization light；And one or more inner surfacies of at least one in inlet manifold, impeller assembly and outlet manifold carry this sterilization light, for the one or more inner surface is carried out disinfection.
Once consider description below and claims with reference to accompanying drawing, the these and other objects of the present invention, function and feature and operational approach and the function of associated structural elements, the combination of part and manufacture economy all will become more apparent from, wherein, all of accompanying drawing is respectively formed a part for patent specification, in accompanying drawing, identical reference refers to the corresponding part in several accompanying drawings.But, it will being clearly understood that, accompanying drawing is merely for the purpose of illustration and description and the boundary of restriction be not used as to(for) the present invention.As in this manual and used in detail in the claims, singulative " ", " a kind of " and " being somebody's turn to do " include plural number, unless the context clearly determines otherwise.
Brief Description Of Drawings
Fig. 1 is the schematic diagram of the pressure support system of the non-limiting example concrete according to, wherein it is possible to implement the present invention in its various embodiments；
Fig. 2 is the vertical view isometric view of the blower assembly according to disclosed concept；
Fig. 3 is the bottom isometric view of the blower assembly of Fig. 2；
Fig. 4 is the exploded isometric view of the blower assembly of Fig. 2；
Fig. 5 is the cross-sectional view strength of the blower assembly of Fig. 2；
Fig. 6 is the face upwarding view of the lower house of the blower assembly of Fig. 2；
Fig. 7 is the vertical view isometric view of the lower house of Fig. 6；
Fig. 8 is the exploded isometric view of the impeller assembly of the blower assembly of Fig. 2；
Fig. 9 is the bottom isometric view of the upper shell of the blower assembly of Fig. 2；
Figure 10 is the cross-sectional view strength of a part for the blower assembly of Fig. 2 of the embodiment according to disclosed concept；
Figure 11 is the cross-sectional view strength of a part for the blower assembly of Fig. 2 of another embodiment according to disclosed concept；
Figure 12 is the cross-sectional view strength of the blower assembly of Fig. 2 of another embodiment according to disclosed concept；
Figure 13 is the cross-sectional view strength of a part for the blower assembly of Fig. 2 of another embodiment according to disclosed concept；
Figure 14 is the cross-sectional view strength of a part for the blower assembly of Fig. 2 of another embodiment according to disclosed concept；And
Figure 15 is the cross-sectional view strength of a part for the blower assembly of Fig. 2 of another embodiment according to disclosed concept.
Detailed description of the invention
Used herein such as (such as but not limited to) top, the end, the direction phrase of left and right, upper and lower, forward and backward and derivative etc relate to the orientation of the element shown in accompanying drawing and do not limit claim, unless be explicitly described herein.
The most like that, the statement that two or more parts or parts are " coupled " together should mean that and linked together directly or through one or more centre parts or parts by part or co-operate.
As utilized herein, term " quantity " shall mean that one or is more than the integer (that is, multiple) of.
As utilized herein, term " manifold " shall mean that a kind of component with one or more pipeline or chamber, liquid or gas can be allocated by the one or more pipeline or chamber.
Fig. 1 is the schematic diagram of the pressure support system 50 of the non-limiting example concrete according to, wherein it is possible to implement the present invention in its various embodiments.With reference to Fig. 1, pressure support system 50 includes flow generator 52, such as support the aerator used in device at conventional CPAP or double horizontal pressure force, this flow generator receives, from any suitable source (pressurized canister of such as oxygen or air, ambient air or a combination thereof), the breathing gas generally represented by arrow C.Flow generator 52 produces breathing gas (such as air, oxygen or its mixture) stream, for carrying to the air flue of patient 54 under of a relatively high and relatively low pressure (being i.e. substantially equal to or higher than environment atmospheric pressure).
In the exemplary embodiment, flow generator 52 can provide a kind of pressure from 3-30 centimeter water column (cmH2O) gas flow changed.The flow of pressurised respiratory gas substantially represented by arrow D from flow generator 52 is carried to the respirator or patient interface 58 with any known structure via delivery conduit 56, patient 54 is worn or be otherwise affixed to this respirator or patient interface generally by patient 54, in order to transmit gas flow to the air flue of patient 54.Delivery conduit 56 and patient interface device 58 are generally commonly referred to collectively as patient circuit.
Pressure support system 50 shown in Fig. 1 is referred to as the things of single branch system exactly, it means that this patient circuit only includes the delivery conduit 56 that patient 54 is connected to pressure support system 50.Equally, delivery conduit 56 arranges steam vent 57, be used for from this system as by discharging exhaled gas shown in arrow E.It should be noted that steam vent 57 may be disposed in addition in delivery conduit 56 or replaces other position in delivery conduit 56, such as in patient interface device 58.It should also be appreciated that will discharge, from pressure support system 50, the expection mode followed according to gas, steam vent 57 can have multiple structure.
It is also contemplated that having arrived pressure support system 50 can be a kind of two branch systems, this two branch system has delivery conduit and is connected to the exhaust manifolds of patient 54.In two branch systems (the most double branch system), these exhaust manifolds carrying discharging gas and including air bleeding valve in the end away from patient 54 from patient 54.Air bleeding valve in such an embodiment is generally actively controlled to maintain expection level or pressure within the system, and it is commonly referred to as end expiratory positive pressure (PEEP).
Additionally, in the illustrative exemplary embodiment shown in FIG, patient interface 58 is nasal oral mask.However, it will be appreciated that patient interface 58 can include nose cup, nasal pillow, tracheal casing pipe, endotracheal tube, or provide other device any of suitable airflow connection function.Equally, for purposes of the present invention, phrase " patient interface " can include delivery conduit 56 and pressurized breathable gas source is connected to other structure any of patient 54.
In the embodiment shown, pressure support system 50 includes the pressure controller of the form in the valve 60 being arranged in delivery conduit 56.Valve 60 controls the pressure of the gas flow carried from flow generator 52 to patient 54.For this purpose, flow generator 52 and valve 60 are commonly referred to collectively as pressure generating system, this is because they act on the pressure to control the gas to patient 54 conveying and/or flow jointly.But, it should it is evident that other technology (such as individually or changing the blower speed of flow generator 52 in combination with pressure-control valve) of the pressure for controlling the gas to patient 54 conveying is expected by set by the present invention.Thus, according to the technology of the pressure for controlling the gas flow to patient 54 conveying, valve 60 is selectable.If eliminating valve 60, this pressure generating system individually corresponds to flow generator 52, and such as controls the gas pressure in patient circuit by the motor speed of control flow generator 52.
Pressure support system 50 also includes the flow transducer 62 measuring the flow of the breathing gas in conveyance conduit 56.In specific embodiment shown in FIG, flow transducer 62, to plant in line with delivery conduit 56, preferably is plugged on the downstream of valve 60.Flow transducer 62 produces flow signal QMeasure, it is provided to controller 64 and by controller 64 in order to determine the gas flow (Q of patient 54Patient)。
For based on QMeasureCalculate QPatientTechnology be it is well known that and consider patient circuit pressure drop, from system known leak (i.e. in Fig. 1 by the gas shown in arrow E from loop have a mind to discharge) and from the unknown leakage (such as in the leakage of this cover/patient interface) of system.It is envisioned that be used for calculating leakage flow QRevealAny of or technology hereafter researched and developed, and based on QMeasureCalculate QPatientTime use this to determine.The example of this technology is by United States Patent (USP) No.5,148,802；No.5,313,937；No.5,433,193；No.5,632,269；No.5,803,065；No.6,029,664；No.6,539,940；No.6,626,175；And No.7,011,091 teaches, and the content of each in these patents is all incorporated in the present invention by reference.
Certainly, it is envisioned that other technology of the respiratory flow for measuring patient 54, tightly it is positioned at patient 54 such as but not limited to measuring or measures patient flow along the flow of other position of delivery conduit 56, operation based on flow generator 52 and use the flow transducer of the upstream being positioned at valve 60 to measure patient flow.
Controller 64 includes processing part and memory part, this process part can be such as microprocessor, microcontroller or other suitable processing means a certain, this memory part can be located at the inside of this process part or is operatively coupled to this process part and provides data and the storage medium of software of a kind of operation for controlling pressure support system 50 for being performed by this process part, wherein, control operation to include controlling such as the transmitting of the ultraviolet being discussed in more detail herein.
In the embodiment shown, pressure support system 50 also includes the humidifier 68 being arranged in the main casing of pressure support system 50.As selection, humidifier 68 can separate and be positioned at the outside of this main casing with main casing.Humidifier 68 is controlled by controller 64.Humidifier 68 further increases comfort level by providing moisture in supply gas.In this exemplary embodiment, humidifier 68 is the humidifier blowing over (passover) type.Pass through to quote the U.S. Patent Application Publication document No.2007/0169776 being fully incorporated in herein at this and disclose a kind of exemplary humidifier apparatus being suitable to and using in the present invention.It is used as the humidifier apparatus with alternate design, for example with atomization, is atomized, evaporates or the non-humidifier blowing over type of a combination thereof.
In the illustrative non-limiting embodiment of the present invention, pressure support system 50 is essentially acted as a kind of cpap pressure and supports system, and is therefore included in this kind of system required all properties, in order to provide suitable cpap pressure level to patient 54.This includes receiving necessary parameter via input order, signal, instruction or out of Memory, is used for providing suitable cpap pressure, the most minimum and maximum cpap pressure setting value.It should be understood that, this is only exemplary, and includes but not limited to that full-automatic double horizontal malleation auxiliary servo (BiPAPAutoSV), average volume ensure that other pressure support ventilation method of pressure support ventilation (AVAPS), full-automatic malleation (AutoCPAP) continuously and full-automatic double horizontal malleation (BiPAPAuto) is in the scope of the present invention.
Fig. 2 be according to exemplary embodiment can be in order to realize the vertical view isometric view of the blower assembly 100 of flow generator 52 in pressure support system 50, Fig. 3 is its bottom isometric view, and Fig. 4 is its exploded isometric view, and Fig. 5 is its cross-sectional view strength.As shown in figs. 2-5, blower assembly 100 include lower house 110, upper shell 120, and the impeller assembly 130 that is placed between lower house 110 and upper shell 120 and delivery channel 140.The impeller assembly 130 described in further detail below be configured to suck be directed through lower house 110 gas and by delivery channel 140 with change (such as, higher) pressure and/or flow velocity discharge this gas, this delivery channel 140 and then be coupled to patient circuit.
With reference to the face upwarding view that Fig. 6 and Fig. 7, Fig. 6 are lower house 110, Fig. 7 is the vertical view isometric view of lower house 110, and lower house 110 includes that gas passes through its import 111, guiding wall 112 and body part 113 entered.After gas enters, it flows through guiding wall 112 and flows through above body part 113.As indicated, lower house 110 also includes containment wall 114 and the port 115 positioned along the periphery of lower house 110.Containment wall 114 is configured to be sealingly joined to the base plate of pressure support system 50 or housing member (not shown) so that when gas is pulled through body part 113, it is suppressed and is forced through port 115.As seen in Figure 7, lower house 110 also includes that regional catheter 116 and coupling part 117, other place in this article describe the function of the two.
With reference to the decomposition view that Fig. 5 and Fig. 8, Fig. 8 are impeller assembly 130, impeller assembly 130 includes upper shell 131, the lower house 132 with inlet ports 133 and the impeller 134 being maintained between upper shell 131 and lower house 132.Impeller assembly 130 also includes outlet member 135, and this outlet member is configured to be maintained between the regional catheter part 137 of upper shell 131 and the regional catheter part 138 of lower house 132, thus forms the delivery channel for impeller assembly 130.As selection, impeller assembly 130 can be substituted by a kind of assembly including compressor, blower fan, aerator, piston or corrugated tube.
Fig. 9 is the bottom isometric view of upper shell 120.As can be seen, upper shell 120 includes regional catheter 121, coupling part 122 and chamber 123.Lower house 110 and upper shell 120 are constructed such that proper when being coupled to each other, regional catheter 116,121 alignment and coupling part 117,122 alignment.Additionally, with reference to Fig. 4, delivery channel 140 is configured to be positioned and held between coupling part 117,122.
In operation, the breathing gas such as but not limited to air or oxygen enters lower house 110 by import 111.The region that gas is directed to the bottom by body part 113 by guiding wall 112 subsequently and containment wall 114 is limited.Gas flows to the region limited by the chamber 123 of upper shell 120 from there through port 115.Gas outside downward across impeller assembly 130 subsequently flows to the top of body part 113, and there, gas is directed into the air inlet port 133 of impeller assembly 130.In the inner side of impeller assembly 130, increased pressure and/or the flow velocity of gas by the operation of impeller 134.Gas is discharged by the delivery channel formed by outlet member 135, regional catheter part 137 and local conduit portion 138 from impeller assembly 130 subsequently.Institute's expellant gas is received in the catheter component formed by regional catheter 116,121, coupling part 117,122 and delivery channel 140, and is carried to patient by patient circuit as described herein subsequently.
Thus, the most as just described, blower assembly 100 has three major parts: (i) for carrying " inlet manifold " of breathing gas to impeller assembly 130, this inlet manifold includes import 111, guiding wall 112, body part 113, containment wall 114, port 115 and chamber 123, (ii) for pressure and/or the impeller assembly 130 of flow velocity of conditioning respiratory gases, and (iii) is for " outlet manifold " to patient circuit conveying breathing gas, this outlet manifold includes regional catheter 116, 121, coupling part 117, 122 and delivery channel 140.
Additionally, as seen in Figure 1 and according to disclosed concept, pressure support system 50 is additionally provided with ultraviolet system 70, and in the exemplary embodiment, this ultraviolet system is configured to produce UVcUltraviolet light is to carry out disinfection to the gas flow paths (including the inlet manifold as described in just, impeller assembly 130 and outlet manifold) in flow generator 52.More specifically, when causing UVcDuring surface in ultraviolet light exposure flow generator 52, when i.e. contacting the surface of inlet manifold, impeller assembly 130 and delivery channel, the organism that it will be present on those surfaces by changing the DNA of these organisms to kill, thus advantageously prevent they regeneration and thus cause the most safer and more healthy gas path.In unrestriced exemplary embodiment, ultraviolet system 70 is emitted in the UV in 100 to 400 nanometer rangecUltraviolet light.In a particular embodiment, the UV in 200 to 280 nanometer range it is emitted incLight.
As will be appreciated, blower assembly 100 and ultraviolet system 70 can realize in a number of different manners, in order to provide safer and more healthy gas path for the user of pressure support system 50.The multiple unrestriced Alternative exemplary describing blower assembly 100 and ultraviolet system 70 below in association with Figure 10-15 carries into execution a plan.Can use in pressure support system 50 and each this carry into execution a plan its gas flow paths is carried out disinfection.
Figure 10 be blower assembly 100 be labeled as 200 the first cross-sectional view strength carried into execution a plan, this blower assembly has the embodiment being labeled as 70-10 of the ultraviolet system 70 being integrated with.For convenience of description, carry into execution a plan and 200 be shown as wherein and be not provided with impeller assembly 130.However it is understood that to, in actual use, impeller assembly 130 will be included.In the present embodiment, ultraviolet system 70-10 include main circuit board 210, multiple UV in multiple positions of being embedded in blower assembly 100cLight emitting diode (LED) 220 (schematically showing in Fig. 10) and advance from main circuit board 210 and main circuit board 210 is connected to multiple wires 222 of LED220.In the embodiment shown, in LED220 is embedded in the main part 113 of lower house 110 and in upper shell 120 so that they will send UV on the surface of those partscUltraviolet light, causes breathing gas to flow the most as described herein.In addition, in other embodiments, (such as in guiding wall 112) in LED220 also can be embedded in the other parts of " inlet manifold ", in the some of impeller assembly 130 (such as in upper shell 131 and/or lower house 132) and in the some (such as regional catheter 116,121 and/or delivery channel 140) of " outlet manifold ".In operation, main circuit board 210 be configured to connect LED220, itself so send UVcUltraviolet light, thus the neighbouring surface in blower assembly 100 is carried out disinfection.
Figure 11 show blower assembly 100 be labeled as 300 the second cross-sectional view strength carried into execution a plan, this blower assembly has the alternate embodiment (being labeled as 70-11) of the ultraviolet system 70 being integrated with.For convenience of description, carry into execution a plan and 300 be shown as wherein and be not provided with impeller assembly 130.In this embodiment, ultraviolet system 70-11 includes main circuit board 310, the multiple UV being positioned on main circuit board 310cLight emitting diode (LED) 330 and advance in being connected to LED330 and being embedded in the multiple part of blower assembly 100 and along the multiple part of blower assembly 100 multiple light pipes 332 (such as but not limited to, optical fiber, transparent plastic rod or similar optical transport component).Especially, as shown in Figure 11, each light pipe 332 has first optical receiving end of be connected in LED330, and the second luminous end at the select location being located in blower assembly 100.In the present embodiment, light pipe 332 can advance to combine at any position of the installed LED220 described in Figure 10.In operation, LED330 sends UVcUltraviolet light also makes UVcUltraviolet light passes light pipe 332, and these light pipes multiple surfaces in blower assembly 100 emit beam and thus carry out disinfection these surfaces.
Figure 12 show blower assembly 100 be labeled as 400 the 3rd cross-sectional view strength carried into execution a plan, this blower assembly has (being labeled as 70-12's) another alternate embodiment of the ultraviolet system 70 being integrated with.In this embodiment, ultraviolet system 70-12 include main circuit board 410 and be positioned on this main circuit board 410 send UV when turned oncMultiple UV of ultraviolet lightcLight emitting diode (LED) 440.According to this embodiment, multiple parts of blower assembly 100 (such as but not limited to, " inlet manifold ", " outlet manifold " and/or one or more parts of impeller assembly 130) by UVcThe material that ultraviolet light is transparent is made.As utilized herein, term " transparent " shall mean that this light of permission through this material and should include but not limited to that this light is by diffusion (translucent) with not by the situation of diffusion.Such as, this transparent material can be a kind of amorphous polymer, such as but not limited to Merlon, acronitrile-butadiene-styrene (ABS) or polystyrene.Thus, the UV sent from LED440cUltraviolet light is through the selected parts of blower assembly 100, and therefore carries out disinfection the inner surface of those parts.
Figure 13 show blower assembly 100 be labeled as 500 the 4th cross-sectional view strength carried into execution a plan, this blower assembly has (being labeled as 70-13's) the another alternate embodiment of the ultraviolet system 70 being integrated with.For convenience of description, impeller assembly 130 is the most again eliminated.In this embodiment, ultraviolet system 70-13 includes main circuit board 510, sends UV when turned in some parts of being embedded in blower assembly 100cMultiple UV of ultraviolet lightcLight emitting diode (LED) 550 and LED550 is connected to multiple wires 552 of main circuit board 510.Additionally, ultraviolet system 70-13 includes that be arranged on main circuit board 510 sends UV when turned oncThe UV of another quantity of ultraviolet lightcLight emitting diode (LED) 554 and advance from main circuit board 510 and be embedded in the multiple light pipes 556 in some parts of blower assembly 100.In operation, LED550 and light pipe 556 send UVcUltraviolet light also combines to carry out disinfection the selected surface in blower assembly 100.Carry into execution a plan 500 be thus Figure 10 carry into execution a plan 200 and Figure 11 carry into execution a plan 300 combination.Although additionally, set formula LED550 with two and two light pipes 556 describe blower assembly 500 explicitly, but there is the LED of any amount, structure and/or combination and light pipe is in the range of disclosure concept.
Figure 14 show blower assembly 100 be labeled as 600 the 5th cross-sectional view strength carried into execution a plan, this blower assembly has (being labeled as 70-14's) the another alternate embodiment of the ultraviolet system 70 being integrated with.For convenience of description, impeller assembly 130 is the most again eliminated.In this embodiment, ultraviolet system 70-14 include main circuit board 610, the multiple light reflective surfaces 660 being positioned at blower assembly 100 and be arranged on main circuit board 610 send UV when turned oncMultiple UV of ultraviolet lightcLight emitting diode (LED) 662.Such as but without limitation, these light reflective surfaces can be the metal parts of i or paper tinsel or the metal coating being plated, spray or being applied to base material.According to this embodiment, multiple parts of blower assembly 100 (such as but not limited to, " inlet manifold ", " outlet manifold " and/or one or more parts of impeller assembly 130) by UVcThe material that ultraviolet light is transparent is made.Carry into execution a plan in 600 at blower assembly 100, the UV sent from LED662cUltraviolet light is constructed to pass through selected parts, contacts reflecting surface 660, and as can be seen, reflects, thus advantageously allow for reaching more surface and from there through UV in different directionscUltraviolet light carries out disinfection.Although LED662 is shown on main circuit board 610 use, but being equipped with LED in blower assembly 100 and/or light pipe (as described in other position herein) is in the range of disclosure concept, to send the light from reflecting surface 660 reflection, and thus arrive more surface and it is carried out disinfection.This carrying into execution a plan is described below in association with Figure 15.
Figure 15 show blower assembly 100 be labeled as 700 the 6th cross-sectional view strength carried into execution a plan, this blower assembly has (being labeled as 70-15's) the another alternate embodiment of the ultraviolet system 70 being integrated with.For convenience of description, impeller assembly 130 is the most again eliminated.In this embodiment, ultraviolet system 70-15 include main circuit board 710, multiple UV in multiple positions of being embedded in blower assembly 100cLight emitting diode (LED) 770 and LED770 is connected to multiple wires 772 of main circuit board 710.Photosystem 70-15 also includes the UV being positioned at another quantity on main circuit board 710cLight emitting diode (LED) 774, it is connected to LED774 in its one end and as described in other position herein, is embedded in the multiple light pipes 776 in blower assembly 100.Finally, photosystem 70-15 includes the UV being positioned at another quantity on main circuit board 710cLight emitting diode (LED) 777 and the reflecting surface 778 being arranged on the inner surface of lower house 110.Carry into execution a plan in 700 at blower assembly 100, multiple parts of blower assembly 100 (such as but not limited to, " inlet manifold ", " outlet manifold " and/or one or more parts of impeller assembly 130) by UVcThe material that ultraviolet light is transparent is made.By this way, the light that the LED777 from main circuit board 710 sends is constructed to pass through selected parts and contacts reflecting surface 778 such that it is able to arrive the more surfaces in blower assembly 100.Additionally, the light sent from LED770 and/or light pipe 776 is configured to reflect arrive the more surfaces in blower assembly 100 and carry out disinfection it from reflecting surface 778 equally.In operation, LED770,774,777, light pipe 776 and reflecting surface 778 combine to allow UVcMore surfaces in ultraviolet light exposure blower assembly 100 and thus it being carried out disinfection.Carry into execution a plan 700 thus for specifically described herein carry into execution a plan 200,300,400 and 600 combination.
Additionally, the UV that there is any amount, construct and/or combinecLight source is in the range of disclosure concept, these UVcLight source includes but not limited to LED, light pipe, reflecting surface and/or the transparent surface allowing most preferably to sterilize in blower assembly 100.Use the most NM replacement UVcLight source is (such as but not limited to UVcUV lamp bulb) it is similarly in the range of disclosure concept.
Thus, according to disclosed concept, gas flow paths in blower assembly 100 (such as but not limited to, " inlet manifold ", impeller assembly 130 and " outlet manifold ") can be by sending sterilization UVcThe ultraviolet system of light (such as but not limited to, ultraviolet system 70-10,70-11,70-12,70-13,70-14,70-15) quickly and securely carry out disinfection.
Additionally, as described herein ultraviolet system 70-10,70-11,70-12,70-13,70-14 and 70-15 can be switched on, and thus it is caused and sends sterilization light according to any one in multiple suitable scheme or mechanism.Such as but not limited to, ultraviolet system 70-10,70-11,70-12,70-13,70-14 and 70-15 are configurable to by based on any one (the expiring of such as timer in multiple situation, after using pressure support system 50 some hours, or when no matter when pressure support system 50 is in use or does not uses) come manually (such as, passing through button) or automatically turn on.
For purposes of illustration, the content having been based on being presently considered to be exemplary embodiment the most practical describes the present invention in detail.It will nevertheless be understood that, this details is only used for this purpose, and the present invention is not limited to the disclosed embodiments, but on the contrary, it is intended that cover the amendment and equivalent structure being in spirit and scope of the appended claims.Such as but be not intended to be, the present invention is not limited to PAP treatment system (such as pressure support system 50), but the ultraviolet system 70 in various embodiments specifically described herein can be used together with any type of gas delivery system (such as but not limited to respirator, oxygen delivery system or other breathing equipment) being used for carrying gas flow to patient.
Claims (17)
1. the gas delivery system (50) being used for patient (54) conveying gas flow, including:
It is configured to produce the blower assembly (100) of described gas flow, described blower assembly includes that gas flow paths, described gas flow paths include the assembly (130) of inlet manifold, the pressure being configured to regulate described gas flow and/or flow velocity and be configured to be coupled to the outlet manifold of patient circuit；And
Photosystem, described photosystem is configured to produce sterilization light and the one or more inner surfacies of at least one in described inlet manifold, described assembly and described outlet manifold carry described sterilization light, for carrying out disinfection the one or more inner surface.
Gas delivery system the most according to claim 1 (50), wherein, described assembly is impeller assembly.
Gas delivery system the most according to claim 2 (50), wherein, described blower assembly (100) also includes lower house (110), the upper shell (120) being connected to described lower house and delivery channel (140), and described impeller assembly and described delivery channel are between described lower house and described upper shell.
Gas delivery system the most according to claim 1 (50), wherein, described sterilization light is ultraviolet light, and described photosystem is ultraviolet system.
Gas delivery system the most according to claim 4 (50), wherein, described sterilization light is UVcUltraviolet light, and described photosystem is for being configured to produce described UVcThe ultraviolet system of ultraviolet light.
Gas delivery system the most according to claim 5 (50), wherein, described photosystem includes the multiple UV being embedded in the part of at least one in described inlet manifold, described impeller assembly and described outlet manifoldcLight emitting diode (220).
Gas delivery system the most according to claim 5 (50), wherein, described photosystem includes circuit board (310), the multiple UV being positioned on described circuit boardcLight emitting diode (330) and multiple optical transport component (332), each in described optical transport component is coupled to described UVcCorresponding one in light emitting diode, and described UVcLight emitting diode is configured to produce described UVcUltraviolet light also makes described UVcUltraviolet light passes described optical transport component, in order at least one in described inlet manifold, described impeller assembly and described outlet manifold carries described UVcUltraviolet light.
Gas delivery system the most according to claim 5 (50), wherein, described photosystem includes circuit board (410) and the multiple UV being positioned on described circuit boardcLight emitting diode (440), and described blower assembly (100) includes by UVcAt least one parts that the material that ultraviolet light is transparent is made.
Gas delivery system the most according to claim 5 (50), wherein, described photosystem includes circuit board (510)；The UV of the first quantity being embedded in the part of at least one in described inlet manifold, described impeller assembly and described outlet manifoldcLight emitting diode (550)；The UV of the second quantity being arranged on described circuit boardcLight emitting diode (554)；And extending through multiple optical transport components (556) of one or more parts of described blower assembly, each in described optical transport component is connected to the UV of described second quantitycCorresponding one in light emitting diode.
Gas delivery system the most according to claim 5 (50), wherein, described photosystem includes the multiple reflecting surfaces (660) being arranged in the part of at least one in described inlet manifold, described impeller assembly and described outlet manifold, and described reflecting surface is configured to reflect UVcUltraviolet light.
11. 1 kinds of methods that the gas flow paths in gas delivery system (50) is carried out disinfection, described gas delivery system includes the blower assembly (100) being configured to produce gas flow, described gas flow paths includes the assembly (130) of inlet manifold, the pressure being configured to regulate described gas flow and/or flow velocity and is configured to be coupled to the outlet manifold of patient circuit, and described method comprises the following steps:
There is provided a kind of photosystem as a part for described gas delivery system；
Sterilization light is produced from described photosystem；And
The one or more inner surfacies of at least one in described inlet manifold, described impeller assembly and described outlet manifold carry described sterilization light, for carrying out disinfection the one or more inner surface.
12. methods according to claim 11, wherein, described sterilization light is ultraviolet light, and described photosystem is ultraviolet system.
13. methods according to claim 12 (50), wherein, described sterilization light is UVcUltraviolet light, and described photosystem is for being configured to produce described UVcThe ultraviolet system of ultraviolet light.
14. methods according to claim 13, wherein, described photosystem is used for producing multiple UV of described sterilization light in including being embedded in described blower assembly (100)cLight emitting diode (220).
15. methods according to claim 13, wherein, described photosystem includes circuit board (310), is positioned on described circuit board the multiple UV for producing described sterilization lightcLight emitting diode (330) and multiple optical transport component (332), each in described optical transport component is connected to described UVcCorresponding one in light emitting diode, and described UVcThe one or more inner surface of at least one that light emitting diode is configured in described inlet manifold, described assembly and described outlet manifold carries described sterilization light.
16. methods according to claim 13, wherein, described photosystem includes circuit board (410) and the multiple UV being positioned on described circuit boardcLight emitting diode (440), described blower assembly (100) includes by UVcAt least one parts that the material that ultraviolet light is transparent is made, and described conveying includes making described sterilization light through at least one parts described.
17. methods according to claim 13, wherein, described photosystem includes the multiple reflecting surfaces (660) being arranged in the part of at least one in described inlet manifold, described impeller assembly and described outlet manifold, and described reflecting surface is configured to reflect UVcUltraviolet light, and described conveying includes making described sterilization light reflect from described reflecting surface.
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| PCT/IB2014/066994 WO2015092695A1 (en) | 2013-12-18 | 2014-12-17 | Gas delivery system and method of sanitizing the gas flow path within a gas delivery system |
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| CN105828860B CN105828860B (en) | 2019-08-20 |
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Also Published As
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| US20160317685A1 (en) | 2016-11-03 |
| JP2017500918A (en) | 2017-01-12 |
| CN105828860B (en) | 2019-08-20 |
| WO2015092695A1 (en) | 2015-06-25 |
| RU2677104C1 (en) | 2019-01-15 |
| US10130726B2 (en) | 2018-11-20 |
| US20200215216A1 (en) | 2020-07-09 |
| BR112016013930A2 (en) | 2017-08-08 |
| US10617776B2 (en) | 2020-04-14 |
| US20190054199A1 (en) | 2019-02-21 |
| US11202842B2 (en) | 2021-12-21 |
| EP3082919A1 (en) | 2016-10-26 |
| BR112016013930B1 (en) | 2022-01-11 |
| EP3082919B1 (en) | 2019-05-29 |
| RU2016128751A (en) | 2018-01-23 |
| JP6397915B2 (en) | 2018-09-26 |
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